Pre-Cal

posted by .

Find two functions f and g such that (f X g)(x) = h(x). (There are many correct answers.)

h(x) = 4 / (5x + 2)^2 =

My answers were: f(x) = 4 / 5x, and
g(x) = 5x + 2

Please explain. These answers were wrong and I do not know how to fix them!!

  • Pre-Cal -

    using your answers

    g(x) = (5x+2)

    f (g(x)) = 4 /[5(5x+2)]

    = 4/(25x+10)
    ----------------------
    Say g(x) = 1/(5x+2)
    and f(x) = 4 x^2

    then f(g(x)) = 4 [ 1^2/(5x+2)^2 ]

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    Find two functions f and g such that (f X g)(x) = h(x). ( There are many correct answers. My answers were f(x) = 4/5x and g(x) = 5x + 2 but this was wrong.
  2. Math(Please help)

    Find two functions f and g such that (f X g)(x) = h(x). ( There are many correct answers. My answers were f(x) = 4/5x and g(x) = 5x + 2 but this was wrong.
  3. Math

    Find two functions f and g such that (f X g)(x) = h(x). ( There are many correct answers. My answers were f(x) = 4/5x and g(x) = 5x + 2 but this was wrong. I do not know how to do this.
  4. Pre-Cal(Please help)

    Find (a) f X g , (b) g X f, and (c) f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For the f(x) the 3 is little above the sqrt sign. my answers were: (a) = 3sqrt x^4 -1 (b) = x^4 -1 (c) = 6sqrt x+1 These answers are wrong but I do not know …
  5. Pre-Cal(Please help)

    Find two functions f and g such that (f X g)(x) = h(x). (There are many correct answers.) h(x) = 4 / (5x + 2)^2 = My answers were: f(x) = 4 / 5x, and g(x) = 5x + 2 Please explain. These answers were wrong and I do not know how to fix …
  6. Pre-Cal

    Find (a) f X g , (b) g X f, and (c) f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For the f(x) the 3 is little above the sqrt sign. my answers were: (a) = 3sqrt x^4 -1 (b) = x^4 -1 (c) = 6sqrt x+1 These answers are wrong but I do not know …
  7. Calculus

    Assume that each of the follwing functions gives the position of an object at time t. Find the velocities indicated by setting up and evaluating a limt algebraically. (a) s(t) = 3t^2, Find v(-1). (b) s(t) = 1/t , Find v(2). (c) s(t) …
  8. Pre cal

    A parallelogram has sides of lengths 7 and 4, and one angle is 55°. Find the lengths of the diagonals. (Round your answers to two decimal places. Enter your answers as a comma-separated list.)
  9. pre-cal

    Find the zeros, if any exist. Round your answers to two decimal places.
  10. Math

    There are six true-false questions on a quiz. Not knowing any of the answers, a student guesses randomly. Find the probability of each event. Exactly two answers are correct. Exactly six answers are correct. At least five are correct. …

More Similar Questions